The present paper discussed some possible translational types in detail, and derived the elements of the pseudo-symmetry for the low symmetry crystal systems (74 space groups).
本文着重分析了可能出现的平移赝对称形式，并以低级晶系所属的74个空间群为例导出了赝对称形式。
2
This paper reported the preparation of pseudo-hexagonal ZnS nano-crystal powders used the hydrates of Zn(OAc)2 and Na2S by modified solid-state method at room temperature.
以硫化钠与醋酸锌为原料，采用改进的室温（湿）固相合成法制备硫化锌纳米晶。
3
The paper proposed using a liquid crystal spatial light modulation (LC-SLM) controlling the laser beam to get a pseudo-thermal light source.